In all plants, including fungi and algae, as well as higher forms, this periodicity of growth, due to season, nutrition, environment, etc., is seen. Practically all temperate zone plants exhibit a yearly periodicity. The ...

-soaked appearance, and evaporation from that tissue is much more rapid than from living tissue. In the experiments described in this paper, the killing temperature of plant tissue that kills at relatively high temperature has been reduced whenever the sap density...